Irving S. Lippert
10Patents
6h-index
8Co-inventors
59Inventor score
Filing activity: Sep 2, 1976 → Apr 15, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4084168A | Flash unit diffuser mechanism for photographic cameras | Physics | 12 | Expired |
| US4147425A | Photographic processing roller having a surface roughened by electric discharge machining | Performing Operations; Transporting | 11 | Expired |
| US4319827A | Method for assembling photographic self-processing apparatus | Physics | 11 | Expired |
| US4109264A | Battery mount for collapsible cameras | Physics | 8 | Expired |
| US4174164A | Photographic processing apparatus | Physics | 8 | Expired |
| US4839676A | Film cassette-liquid spread roller assembly interface | Physics | 8 | Expired |
| US5802402A | Camera back including improved film assemblage | Physics | 5 | Expired |
| US5721966A | Instant photography camera and film cassette | Physics | 4 | Expired |
| US5345289A | Film cassette dark slide incorporating a projection for restraining impact-generated movement | Physics | 3 | Expired |
| US4668062A | Apparatus for precluding rotational movement of an advancing film unit | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.